Valve mechanism



Feb. 2l, 1928.

F. A. HALLECK VALVE MECHANI S M y ww 'Patented Feb. 21, 1928.

umrissmi-Es y means PATENT oFFicE.

FRANK A. Italianen. or OAKL PARK; ILLINoIs, AssIGNoR 'ro suriIiITvAN MACHINERY COMPANY, A GORI'ORATION on MAssAoHsn/Trs.

VALVE MncIIANIsM.

application ined January 30, 1922. serial No. 532,742.

My invention relates to valve mechanisms; and more particularly to valve ymechanisms for compressors or pumps An object of my invention is to provide an improved valve mechanism for pumps or compressors. Another object of my invention is to'provide' an improved combined inlet and discharge valve mechanism for compress'ors or pumps. A further object of'my inventiony is to provide an improved combined inlet and discharge valve for compressors or pumps which may be readily inserted in operative relation to the cylinder and which may be readily assembled or disassembled. Other objects and advantages of my invention will hereinafter' more fully appear. f

in the accompanying drawings, I have shown for purposes ofillustration one form which my invention may assume in practice.

In these drawings,-

Fig. 1l is a central vertical section through a compressor cylinder provided with the illustrative form of myl improved valve mechanism, the latter being" shown in elevation.

Fig. 2 is a vertical section on a line'A corresponding to the plane of Fig'. 1.

Fig. 3 is a; transverse section von the line' 3&3 of- Fg. 2.

Iy have shown the embodiment of my im proved valve mechanism which I have se lected for purposes of illustration in use with a compressor or pump cylinder 1' hav ingl abore` 2 Within Which a piston 3 reciprocates. Y

rlhe opposite ends'ofthe compressor cyl-1 inder are closedby heads 44 and 5, in which heads one or more cagejreceiving' chambers 6, whose axes are disposed hereinradially with respect to the cylinder bore, are formed.V Within the chambers 6 and adjacent the cylinder' ends thereof are annular shoulders 2'A upon which corresponding shoulders 8 upon valve cages 9 areadapted to be seated. The valve cages 9 will be 'note'd'tov be open at their tops as indicated at 10 and to have annular shoulders 11 formedabout the peripheries of the upper ends thereof. These shoulders 11 are surmounted by pa'ckingmaterial 12, and collars 13 having central'open-k ings 14Vtherethrough, are held by bolts 15 passing through ears 16 on the collars to 'the head and so hold the cages rigidlyand leak proof with respect to the cylinder' head.

The head is provided With openings 19 closed by cover plates 20 through which the valve mechanisms may be inserted.

Itwill be noted that the compressor or pump inlet chamberi21 communicates by Way of the openings 14 and 10 of the collar and valve cage with a chamher-22 in the valve cage. This chamber is formed by a partition wall 23 which extends' for the most part parallel to the axis of the cage, but has portions 24 and 24 vat right angles to the axis of the cage which extend respective- 'ly across portions of the'top and bottom of' the cage. rEhe chamber 22 is therefore closed at its bottom by the portion 24 of the partition. .The cage is provided with a lateral opening 25 opening into a passage 26 leading' to the ldischargechamber 27l of the cylinder and secondpartition 28 arrangedy parallel to the partition 23 and extending from the portion 24 of the partition 23 to the lower end of' the valvecage. rlhis partition 28 serves to divide the portion of the urge below the wall 24 and to the right of the wall 23 into two further chambers 29 and 30. l 1t will be noted that thepartition 23 is provided with a s ries of annular ports 31 surrounded by valve seating surfaces 32 andr that the partition 2K8 is bored outk to form a circular opening-33 therein which is surrounded bya valve seating surface 34.

A member 35, which may be passed through theV opening 33, Yis held to-the member 9 by a boltY 36 which cooperates With a guard member 37, .which in turn seats upon themember 35. yThe member 35 lies within the cage member 9 lin a'position coaxial with thevalve seating surfacesl 32and 28 and has an annular portion 38, supported thereon by suitable webs 38, which serves yas a guard for a spring 39, kherein a transversely flexed annularspring which serves tomaintain an annular valve 40, preferably though not necessarily of thin sheet metal, in operative position upon the seating surfaces. 321 It will be noted that a guiding ysurface 41 eX- tendsvbetween the annular portion 38 and the seat surface 32. The member 35 is.pro' vided, 'in the sameI plane with the seat surface 34, with a second concentric surface 43 g and a valve member 44'annular in fornrc'oL operates with the surfaces o4 and 43. This annular valve memberl 44 has an annular transversely bowed spring 45 cooperating therewith, which is engaged by the guard member 37 to maintain it under compression. will be noted that the chamber 29 in the valve cage con'ununicates with the cylinder bore, the chamber With the intalre chamber, and the chamber 3() with the discharge valve member.

The mode ot operation ot this device vvill be readily apparent. illhen the piston is making a stroke to the right, the valve l() will be raised 'from its seated position upon the surface 32; and iluidvill 'lioW in 'from the chamber 2l through the open top oit the valve cage into the chamber 22, through the ports 3l into` the chamber 29, and so into the cylinder bore 2. Upon the opposite stroke, the valve d0 will be seated by the spring 39 and the valve la will b-e unseated by the discharging air which .vill tioiv out oi the cylinder into the chamber Q9, then through the annular port S?) past the valve member ad, and linally through port 2G into the discharge chamber 27. lt will be noted that the annular valves are each guided and held in proper positions by the valve cave and that the clearance volume is relatively small due to the tact that the chamber 29, which is the only chamber normally in communication With the cylinder, is largely filled by the member 35. 1

lVhile l have `in this application specifi# cally described one form which my invention may assume in practice, it will be understood that this LAcrm ot the same is shown tor purposes or illustration and that the invention may bemodilied and embodied in various other kforms without departing from its spirit or the scope or the appended claims.

What l claim as new by Letters Patent is:

lf'n a pump valve mechanism, a stationary elementhaving a chamber formed therein, Which chamber communicates through one end With the bore oit the pump cylinder, valve mechanism including a onepiece valve cage member disposed in said chamber and insertible through the other and desire to secure end thereof, said valve cage member having partition forming means dividing the interior thereotl into a plurality ot chambers, valve seats disposed in different planes on said partition Jforming means, and annular inlet and discharge valves cooperating With said seats.

2. In a pump valve mechanism, a stationary element having a chamber formed therein, f which chamber communicates through its end With the bore ot the pump cylinder, a valve cage member disposed in said chamber and having longitudinal partitions dividing the interior thereotinto a plurality ot chambers, valve seats disposed in different longitudinal planes on said partitions, and annular inlet and discharge valves cooperating with said seats.

8. ln a pump valve mechanism, a station-v ary element having a chamber formed there- 11i and adapted to receive by rectilinear movement through one end thereot a valve cage, which chamber communicates through its other end ivith the bore of the pump cylinder, a valve cage disposed in said chaming a one-piece valve cage in said chamber communicating with the bore of thev cylinder through one end thereof and with one of .said first mentioned chambers throughV the other end thereoit, and having a lateral port communicating with the other ot said iii-st mentioned chambers, and inlet and discharge valves in said cage controlling com@ munication between said cylinder and said lirst mentioned chambers.

5. ln a pump having a cylinder and sup.

ply and discharge chambers, a stationary element having achamber formed therein, Which chamber communicates through its end with the bore ot the pump cylinder, a valve cage in said chamberv provided With partition forming means forming the 'intef rior thereof intoa plurality of which communicates throughv a passage opening through an end Wallonly ot said cage with the bore ot the cylinder, another of which opens only throughV another 'Wall ot the cage to communicate with; one of the said first mentioned chambers, and a third of which opens only through a port through theopcposite end ot said cage into the other.

of sai first mentioned chambers, and inlet and discharge valves in said cage controlling communicationbetween said vcylinder and said first mentioned chambers...

6. ln a pump having a cylinder and supply and discharge chambers, a valve mechanism comprising a valve cage having ports in its opposite endsl and in the periphery thereof, said cage communicating With said cylinder through one of said en-d ports and with said chambers through said other ports, and parallel inlet and discharge valves in said cage controlling communication through said ports between the cylinder and said chambersand movablein the saine direction to open.

7 ln a pump, a valve mechanism including a cage having a plurality ot Webs formed Y' the interior 'thereo therein and dividing a plurality ct into a plurality of chambers,

ot chambers one y concentric valve seating surfaces on one of said Webs, a single annular valve seating surface on anotherthereof, a member constituting a guard for said iirst mentioned surfaces and provided With a valve seat surface concentricvvith said second mentioned seating surface, and annular valves cooperating with said surfaces.

8. In a pump having a cylinder, a valve Amechanism including a cage movable rectilinearly radially of the cylinder to assembled relation therewith and Whose axis is disposed When so assembled radially With respect to the cylinder, and a plurality of valves disposed in parallel planes in said cage, the planes of said valves being parallel to a plane to which the cylinder axis is perpendicular.

9. In a pump, a valve mechanism including a cylindrical cage having valve seating surfaces in said cage disposed parallel to the axis of said cage and having substantially annular flow passages therein arid opening through said surfaces, and annular valves cooperating with said passages.

l0. A valve mechanism comprising a cage member having a longitudinal axis and adapted to be brought to assembled relation With a compressor cylinder by movement parallel to said axis,-said lcage member presenting a plurality of valve seating surfaces substantially parallel to said axis, valves cooperating With said surfaces, guard means for said valves, and means for holding said cage member, valves and guard means in an assembled relation necessitating removal of said guard means to permit said valves to be accessible from the exterior of said cage and to allovv removal thereof.

11. Arvalve mechanism comprising a ported cage having a recess opening through a lateral Wall thereof, valves in said cage, and separate guard means for each of said valves each removable through said lateral opening.

l2. In a valve mechanism, a cylindrical cage comprising a single member having inlet and outlet ports and having valve seating surfaces associated With said ports, inlet and discharge valves for said surfaces adapted to move inthe same direction during opening of either of said sets of ports, and valve engaging means detachably carried by said cage andcommon to said valves.

I3.r A valve mechanism comprising a cage having openings in each of the ends thereof to allou7 flow of Yfluid therethrough, and valve mechanisms for controllingsaid fluid flow disposed parallel to the longitudinal axis of said cage.

14. A valve mechanism having a cage comprising a single member having end and side openings, and valve means disposed parallel to the longitudinal axis of'said cage for controllingv flow of fluid through one of said openings in both directions and through the other thereof in one direction.

15. Valve mechanism comprising a cage having openings in'both ends and a side thereof, the longitudinal axis of the cage extending through the end Openings, and valve means disposed parallel to the longitudinal axis of said cage for controlling flow of fluid therethrough, one of said end openings being adapted to have flow of fluid therethrough in either direction While the other end opening and said side opening are adapted to have iiuid flow therethrough in one direction. Y Y

In testimony whereof I aiiix my signature.

FRANK A; HALLECK. 

